题目内容
用适当动词形式填空
________ (sleep) late in the afternoon, Bob turned off the alarm.
________ (kill) by sharks was a common occurrence at that time.
________ (not, know) her address, we couldn't get in touch with her.
________ (water) the flowers, he began to cut the grass.
________ (give) more attention, the cabbages could have grown better.